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contribution synth with Big Love

to the legendary TB-303

BL-303 (Free)

BL-303 is a contribution synth with Big Love to the legendary Roland TB-303.

Version 3.0 includes improved and resizable user interface, the filter was fine-tuned to sound and behave even closer to the original TB-303, a few more minor performance and sound improvements. Native support for mac Arm and intel processors.

The sequencer part (including the slide and the accent) is handled with midi notes velocity.

  • Shorten the note length a little bit, so it ends slightly before the next note (like the TB).
  • Use the Velocity to control the Accent and the Glide.
  • Velocity 0 – 9: Slide On
  • Velocity 10 – 100: Regular note
  • Velocity 101 – 126: Accent On
  • Velocity 127: Accent & Slide On

The TB-303

was originally created in the beginning of the 80’s as a replacement for base guitarists. It didn’t get much success since it didn’t do the job it was meant to and was taken from the shelves two years later. In the end of the 80’s when the house and techno music started to pop up the device was rediscovered and got famous for it’s uniquely acid wobbly sound.

Now you can get this classic sound for FREE.


If you enjoy using the BL-303, please consider making a DONATION to support and help us to continue developing this free plugin and providing you with other great audio software.

System Requirements:

  • Windows 10+
  • MacOS 10.13+ Arm / Intel

Download Manual